Wrench.



A. C. BEADLE.

WRENCH'.

APPLICATION FILED JUNE I5. |915.

Patented July 30, 1918.

i ALEXANDER c.

BEADLE, or GALUMET, Louisiana.

WRENCH.

l Specification of Letters Patent'.

Patented July 30, 1918.

Application led June 15, 19175. Serial No. 34,245.

To all 'whom it may concern:

Be it known that I, ALEXANDER C. BEADLE, a citizen of the United States, residing at Calumet, in the parish of St. Mary and State of Louisiana, khave invented a new and useful Wrench; and I do `hereby declare the following to be a full, clear, 'and exact description of the invention such as will enable others skilled in the art to which it appertains to make' and use thesame. l y

This invention relates to an improved wrench, and anobject of the invention isl toprovide a wrench involving improved features of construction, namely a movable jaw member movable on a shank, which is provided With a stationary jaw member, the stationary jaw member andthe movable jaw member having oppositely disposed rocking jaw plates, which will accommodateth'emselves to the shape of that whichis-clamped between them. By providing such locking jaw plates, the teeth of themare enabled tov attain a firmer bite into a pipe which is'to be turned. l

Another feature of the invention is the provision of a movable aw member having a central opening to receive the shank of the other jaw member andprovided with oppo` site channeled portions, in which tensioned dogs are pivoted, the noses of which extend through openings from said channels, into the central opening, in order to engage the ratchet teeth upon opposite sides of the shank, so as to hold the jaw member in adjusted position. This movable Jaw member may be cast in one piece, or may be constructed in several parts, as shown 1n the drawings.

In practical fields the details of construction may necessitate alterations, falling within the scope of what is claimed.

The invention comprises further features and combination of parts, as hereinafter set forth, shown in the drawings and claimed.

In the drawings Figure 1 is a view in perspective of the improved wrench constructed in accordance with the invention.

Fig. 2 is a longitudinal sectional view, showing parts in elevation.

Fig. 3 is a sectional view on line 3 3 of Fig. 2.

Fig. 4 is a sectional view on line 4-4 of Fi 2, eferrng thedrawmgs, 1 designates a Shank, e head1@ 2 .at 01.1@ @ed and .a

wrench yhead 3 at .theothen One end ofthe wrench head is provided kwith a-nut ,engaging surface 4, thereby producing.l a wrench nut jaw. The other end of the head 3 is reduced asshown at 5the face 6 ofV which, is curved 'as' shown inFig, 2. Engaging the reduced partf of the head is a U-shaped jawplate, having teeth 8, there being a pivot pin 9 extending through the side flanges of the plate and through the reduced part 7, so as tovpivot said plate in place. Owing to the surface '6 being curved, as shown in Fig. 2 the jaw plate 8 is permitted to have a slight oscillatory. movement, so that the teeth thereof are permitted to firmly bite `into a pipe for turning the same. `Opposite `faces of the shank 1 are provided with ratchet teeth 10 and 11. A -movable jaw member 11a is provided, which l'comprises vthe oppositely disposedch'annell parts 12, the channelslS of which are open upon opposite sides. One endof eachchany-nel part upon its inner Vface has an opening 14, diagonallyV opposite a corresponding opening of the opposite channell part. These channeled parts from each other, and upon opposite sides of the shank, with the openings 14. adjacent the ratchet teeth 10 and 11, and are held in such spaced relation by the side plates 15, which are secured to said ,channel art by the riveted pin 16, and the pins 11'?, on which the dogs 18 are pivotally mounted. Said plates 15 hold the channeled parts, so as to providea central opening 19 through the jaw member 11a, so as to receive the shanky 1. Oney of the channel parts 12 hasv a lug 20, and portions 21 of the plates 15 are disposed upon opposite sides of the lug 20, but spaced apart therefrom. The lug 2O enters a cavity 22 of the toothed jaw y plate 23, which fits between the parts 21 of the plates 15. As shown, the face 24 of the jaw plate 23 is curved, and extending through the parts 21 of the plates 15, and through the lug 20 and the plate 23 is a pivot pin 26, so as to permit the plate 23 to rock, so that its teeth may bite firmly into a pipe to be turned, or so that the surface with said are disposed spaced apartA teeth may accommodate itself to the uneven- 17. -The tail ends of the dogs have enlarge- 'nients29, protruding beyond the vouter edges oflthepehannel 1nen1bersso that by pressure upon-the enlargements, against the action .of the SplvingSBO, the dogs 1S will be rocked upon -theirpivotg suiiciently to disengage their noses fromA the teeth 10 and ll. .The dogs 18 `vhavelugs 31, to engagev the eoil springsBO, actin-g to prevent displacement of the springs. f

The invention having' been set forth, what is claimed asnew'and useful isiv.The lcombination `Wiha Wrench shank having ratchet teeth on its opposite faces and provided at one end with double Wrench jayvs, oi'a'doubleljawed body comprising a pairofiopposed centralsections spaced to receive :the shank therebetween, whereby the seetions .are arranged adjacent and parallel With-the faeesyofkthe shank havingv the ratchet teeth, a pair of outer plates secured to theseetionsholdingy them rigid yand parallel'to each other, whereby the shank may `Dass through vthe. space, each of said sections pivoted in said channels, the .noses or' the dogs remote-frein t-hejawsof the body eX- tending laterally toward each other yand through said openings and having shoulders engaging the shoulder Walls-.of the openings to relieve the shearing actionon the pivots of the dogs,`said noses being i-n staggeredrelation and having teeth staggeredly coperating with the teeth of theshank to hold the body in different' adjusted.positions.

'In testimony Whereoflhave signed my naine to this specification inthe presence 'of two subscribingWitnesses.

l ALEXANDER C. BEADLE.

Vitnesses:y i i 1B. J.. VETTER,

MALCOLM-FENDER.

Copies of this patent may 'be olitained for five cents each, by addressing the vCommissioner of Patents,

Washington, D. C. 

